overexpression

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noun

The abnormal or artificial expression of a gene in increased quantity

OriginEnglish expression ← Middle English over- ← Old English ofer- →
Less commonScrabble 26
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Meanings

nounoverexpression (countable and uncountable, plural overexpressions)

plural overexpressions

  1. countableuncountablebiologyThe abnormal or artificial expression of a gene in increased quantity

Synonyms & antonyms

Also see
superexpressionsurexpression

Origin

  1. Proto-Indo-European*úp
  2. Proto-Indo-European*upér
  3. Proto-Germanic*uber
  4. Old Englishofer-
  5. Middle Englishover-
  6. Englishover-
  7. Englishexpression
  8. Englishoverexpression

From over- + expression.

Full word history & related roots →

Translations

Persian بیشبیان
  • بیشبیانthe artificial expression of a gene in increased quantity
Portuguese sobre-expressão
  • sobre-expressãothe artificial expression of a gene in increased quantity
Cite this entry
APA

overexpression. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/overexpression

MLA

“overexpression.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/overexpression. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “overexpression,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/overexpression.

Source: overexpression on Wiktionary, CC BY-SA 4.0.